Israeli security forces try to arrest a Palestinian protestor as clashes break out outside Damascus gate in Jerusalem on May 15, 2013 during a rally to mark the 65th Nakba or "catastrophe" of the Jewish state's creation in 1948, during which 760,000 Palestinians fled their homes. Thousands of Palestinians took to the streets in the West Bank and the Gaza Strip to demonstrate on Nakba Day and assert their "right to return" to where their ancestors fled after the Israeli victory over Arab armies.